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Recently, transformers have shown promising performance in learning graph representations. However, there are still some challenges when applying transformers to real-world scenarios due to the fact that deep transformers are hard to train…

机器学习 · 计算机科学 2022-05-13 Sixiao Zhang , Hongxu Chen , Haoran Yang , Xiangguo Sun , Philip S. Yu , Guandong Xu

Two main obstacles preventing the widespread adoption of variational Bayesian neural networks are the high parameter overhead that makes them infeasible on large networks, and the difficulty of implementation, which can be thought of as…

机器学习 · 计算机科学 2019-05-24 Oscar Chang , Yuling Yao , David Williams-King , Hod Lipson

Sparse Autoencoders (SAEs) have shown promise in improving the interpretability of neural network activations, but can learn features that are not features of the input, limiting their effectiveness. We propose \textsc{Mutual Feature…

机器学习 · 计算机科学 2024-11-07 Luke Marks , Alasdair Paren , David Krueger , Fazl Barez

In recent years, substantial progress has been made on Graph Convolutional Networks (GCNs). However, the computing of GCN usually requires a large memory space for keeping the entire graph. In consequence, GCN is not flexible enough,…

社会与信息网络 · 计算机科学 2020-11-05 Qiang Liu , Haoli Zhang , Zhaocheng Liu

In recent years, deep neural networks have yielded state-of-the-art performance on several tasks. Although some recent works have focused on combining deep learning with recommendation, we highlight three issues of existing models. First,…

机器学习 · 计算机科学 2018-12-20 Qibing Li , Xiaolin Zheng , Xinyue Wu

Nonnegative matrix factorization (NMF) has become a very popular technique in machine learning because it automatically extracts meaningful features through a sparse and part-based representation. However, NMF has the drawback of being…

机器学习 · 统计学 2012-12-07 Nicolas Gillis

In this paper, we present a general framework to scale graph autoencoders (AE) and graph variational autoencoders (VAE). This framework leverages graph degeneracy concepts to train models only from a dense subset of nodes instead of using…

机器学习 · 计算机科学 2022-06-22 Guillaume Salha , Romain Hennequin , Viet Anh Tran , Michalis Vazirgiannis

In cross-device Federated Learning (FL), clients with low computational power train a common\linebreak[4] machine model by exchanging parameters via updates instead of potentially private data. Federated Dropout (FD) is a technique that…

机器学习 · 计算机科学 2022-09-16 Giacomo Verardo , Daniel Barreira , Marco Chiesa , Dejan Kostic , Gerald Q. Maguire

Autoencoders have been widely used for dimensional reduction and feature extraction. Various types of autoencoders have been proposed by introducing regularization terms. Most of these regularizations improve representation learning by…

机器学习 · 计算机科学 2020-06-26 Yuzhu Guo , Kang Pan , Simeng Li , Zongchang Han , Kexin Wang , Li Li

A feature learning task involves training models that are capable of inferring good representations (transformations of the original space) from input data alone. When working with limited or unlabelled data, and also when multiple visual…

计算机视觉与模式识别 · 计算机科学 2018-11-02 Gabriel B. Cavallari , Leonardo Sampaio Ferraz Ribeiro , Moacir Antonelli Ponti

As real-world graphs expand in size, larger GNN models with billions of parameters are deployed. High parameter count in such models makes training and inference on graphs expensive and challenging. To reduce the computational and memory…

机器学习 · 计算机科学 2023-02-27 Hongwu Peng , Deniz Gurevin , Shaoyi Huang , Tong Geng , Weiwen Jiang , Omer Khan , Caiwen Ding

Sparse autoencoders (SAEs) are one of the main methods to interpret the inner workings of deep neural networks (DNNs), decomposing activations into higher-dimensional features. However, they exhibit critical shortcomings where a large…

机器学习 · 计算机科学 2026-05-19 Michał Brzozowski , Neo Christopher Chung

Masked Autoencoders (MAEs) have emerged as a powerful pretraining technique for vision foundation models. Despite their effectiveness, they require extensive hyperparameter tuning (masking ratio, patch size, encoder/decoder layers) when…

计算机视觉与模式识别 · 计算机科学 2025-08-25 Anthony Bisulco , Rahul Ramesh , Randall Balestriero , Pratik Chaudhari

Sparse autoencoders (SAEs) have recently become central tools for interpretability, leveraging dictionary learning principles to extract sparse, interpretable features from neural representations whose underlying structure is typically…

机器学习 · 计算机科学 2025-11-05 Valérie Costa , Thomas Fel , Ekdeep Singh Lubana , Bahareh Tolooshams , Demba Ba

Few-shot learning focuses on learning a new visual concept with very limited labelled examples. A successful approach to tackle this problem is to compare the similarity between examples in a learned metric space based on convolutional…

机器学习 · 计算机科学 2024-02-06 Heda Song , Mercedes Torres Torres , Ender Özcan , Isaac Triguero

It has been observed that many complex real-world networks have certain properties, such as a high clustering coefficient, a low diameter, and a power-law degree distribution. A network with a power-law degree distribution is known as…

数据结构与算法 · 计算机科学 2018-11-27 Ankit Chauhan , Tobias Friedrich , Francesco Quinzan

Sparse autoencoders (SAEs) extract millions of interpretable features from a language model, but flat feature inventories aren't very useful on their own. Domain concepts get mixed with generic and weakly grounded features, while related…

人工智能 · 计算机科学 2026-04-29 John Winnicki , Abeynaya Gnanasekaran , Eric Darve

Data for Image segmentation models can be costly to obtain due to the precision required by human annotators. We run a series of experiments showing the effect of different kinds of Dropout training on the DeepLabv3+ Image segmentation…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Thomas Spilsbury , Paavo Camps

In this paper, we describe a novel unsupervised learning scheme for accelerating the solution of a family of mixed integer programming (MIP) problems. Distinct substantially from existing learning-to-optimize methods, our proposal seeks to…

最优化与控制 · 数学 2024-12-25 Shiyuan Qu , Fenglian Dong , Zhiwei Wei , Chao Shang

Multiresolution Matrix Factorization (MMF) is unusual amongst fast matrix factorization algorithms in that it does not make a low rank assumption. This makes MMF especially well suited to modeling certain types of graphs with complex…

机器学习 · 计算机科学 2024-08-20 Truong Son Hy , Thieu Khang , Risi Kondor